4 PIPING REQUIREMENTS
All fluid connections to the unit, with the exceptionof the condensate drain, are sweat copper. Factory-installed piping
brackets must not be removed. Field-installed piping must be installed in accordance withlocal codes and must be
properly assembled, supported, isolated and insulated. Avoid piping runs throughnoise-sensitive areas, suchas office walls
and conference rooms.
Refer to specific text and detailed diagrams inthis manual for other unit-specific piping requirements.
All piping below the elevated floor must be located so that it offers the least resistance to air flow. Careful planning of the
piping layout under the raised floor is required to prevent the air flow from being blocked. When installing piping onthe
subfloor, we recommend that the pipes be mounted in a horizontal plane rather than stacked one above the other. Whenever
possible, the pipes should be runparallel tothe air flow.
The pipe connection locations, piping general arrangement and schematics are described inthe submittal documents
included in the Submittal Drawings onpage109.
The following tables list the relevant documents by number and title.
Document Number Title
DPN004561 PipingSchematic, Downflow, CW038toCW114
DPN004138 PipingSchematic, Downflow, CW146andCW181
DPN004562 PipingSchematic, Upflow, CW038toCW114
Table 5.1 Piping General-arrangment Drawings
Document Number Title
DownflowUnitswithECFans
DPN002036 ConnectionLocations, CW038toCW041
DPN002035 ConnectionLocations, CW051 and050
DPN002034 ConnectionLocations, CW075 toCW084
DPN001628 ConnectionLocations, CW106andCW114
DPN001693 ConnectionLocations, CW146andCW181
DPN002434 ConnectionLocations, CW300andCW400
UpflowUnitswithForward-curvedBlowers
DPN001668 ConnectionLocations, CW038toCW084
DPN001669 ConnectionLocations, CW106andCW114
Table 5.2 Piping Connection Drawings
4 Piping Requirements
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